The Forest Arboretum of Warmia and Mazury at Kudypy is a calm, leafy excursion from Olsztyn. Its collections focus on trees and shrubs suited to the region, so it feels less like a formal garden and more like a curated walk through local woodland.
It suits travelers who want a low-key break from the old town and lakeside routes. Spring blossom, summer shade, and autumn colour are the obvious seasons; in any weather, bring shoes that can handle forest paths.